Apparatus for dyeing.



No. 663,687. Patented Dec. ll, I900 L. SCHREINER.

APPARATUS FOR DYEING.

Appi ication filed Aug. 18. 1900.)

(lo Modal.) 2 Sheets-Sheet ll UNITED STATES Pat ent FFlCiEt LUDWIG SOI-IREINER, OF BARMEN-RITTERSHAUSEN, GERMANY;

APPARATUS FOR DYEING.

SPECIFICATION forming m of Letters Patent No. 663,687, dated December i1, 1900. Application filed Au ust 18.1900. Serial No. 27,334. (No model.)

To all whom it nutty concern:

Be it known that I, LUDVVIG SOHREINER, a subject of the German Emperor, residing at Bat-men -Rittershausen, Germany, have invented certain new and useful Improvements in and Connected with the Dyeing of Textile Fabrics, of which the following is a description, reference being had to the accompanying drawings, forming a part hereof.

The process of passing the fabrics in their full Width, under tension and in alternate directions,through the dyeing fluid,as now practiced, is, in an economical sense, by far the best of the processes for dyeing fabrics, just the jigger (machine with reciprocating motion for dyeing fabrics in the width) is the most economically working textiledyeing machine. The process and the machinery re ferred to, however, possess this disadvantage, that the goods are not heavily dyed throughout, and with the small quantity of dyeing fluid employed the taking up of the dye by the fibers (especially in case of the employment of positive or direct dying cotton colors, which are every day becoming more extensively used) becomes at once noticeable,while the adding of concentrated dyeing solution in a uniform manner during the passage of the fabrics is exceedingly difficult, the dye solution being almost motionless. These disadvantages are obviated by the present invention, wherein the dyeingsolution is vigorously circulated as it comes into contact with the fabrics. In this way an increased mechanical friction is obtained between the goods and the dyeing solution, and thereby a more thorough dyeing of the articles throughout. 'lheintroduction of supplementary dyeing solutions (concentrated dye solutions) can now be effected outside the dye-bath without. the fear of any want of uniformity in thedyeing. Thedyeingsolutioniscirculated in the apparatus in alternate directions. In this way (especially when the passage of the goods and the circulation of the dyeing are simultaneously reversed) the goods come into contact one after the other with the dyeing solution at both of their edges. Therefore they are dyed uniformly, and the gradual enriching of the dyeing solution with dyeing material is counterbalanced by the simultaneous stronger squeezing of the goods by means of the increasingly-heavy winding-on roller. The improved jigger for carrying out the new process is furnished, accordingly, with motor arranged outside the dye vat, together with suitable connection-pipes between the motor and the vat and an additional pipe for the concentrated dye solution, opening into the supply-pipe.

If the dyeing solution circulates so that the concentrated dye solution enters the suction pipe of the fluid-motor, it will be sufficiently mixed in the latter with the concentrated so lution before entering the jigger. In order, however, whe the course of the circulation is reversed, to prevent any cont-act of the goods with the unmixed fluids, a heating-pipe is introduced into the longer pipe of the mo tor then acting as a pressure-pipe and the dyeing solution flows in between the motor and the heating or boiling pipe.

In order, finally, to prevent any overflowing of the dyeing solution, which vigorously moved by means of the motor and the boiling-pipe, the bottom of the jigge1.--vat is formed like a pipe with slots for the passage of the articles, the pipe consisting, for eX- ample, of a trough with acover that is nearly entirely closed.

The drawings furnish an example of the improved jigger, Figure 1 being a front view and Fig. 2 a perspectiveplan.

The bottom of the vat a is provided with the trough b, which can be closed by the cover 0, so that only two slots between trough and cover remain for the passage of the fabric. The dye-bath is forced by means of the motor cZ (a screw or a centrifugal pump or an injector or the like) through the short tube e into the trough b and returns through the long tube f to the motor d. A perforated steam-tube g is introduced in the long tube f. The tube h, through which the concentrated dye solution is added to the dye-bath, enters the long tubef between the motor d and the steam-tube g.

The goods run in the well-known manner from the goods-roller 1 over the support-roller 7c, are conveyed by means of guide-rollers ZZZ through the bath in the trough b, and thereafter reach the second support-roller m and are wound up on the second goods-roller n. For the purpose of conveying the goods through the bath under tension, the rollert' has a brake put on it by means of the weight 0, while the winding-on roller 11 is actuated by the support-cylinder m, this latter being driven from the driving-shaftp through the medium ofthe double bevel-wheelq and the bevel-wheel 0. On account of the varying diameter of the goods-rollers t n, resting on the support-rollers is m, the same are not firmly seated, but can slide up and down in the slides s f of the stands and after the bolt u o is thrown back be taken out. The reversing of the course taken by the goods is effected also in the usual manner, the doublebevel-wheel (1 being put into engagement with the bevel-tooth wheel 1 of the support-roller 70 by means of the lever 00, and the weight 0 that serves as a brake being laid over the goods-roller-n.

The operation of the jigger is as follows: While the goods run from the goods-roller 1' through the bathand are Wound again on the rollernthedye-bath in the receptacle formed by the trough b and the cover 0, and being thus almost entirely closed, is vigorously circulated by means of the motor d, and the first half of the concentrated dye solution is allowed tot-low slowly through the pipe 71. and is thoroughly mixed with the bath by means of the motor dor the boiling-pipe g. While the concentrated dye solution of course gradually enriches the dyeing solution with dye,

simultaneously the circulating course of the dye-bath, the second half of the concentrated dye solution being allowed to flow in, and the dye-bath now runs against the other edge of the goods, and therefore effects auniform dyeing thereof.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. In a machine for dyeing textile fabrics in the width; the combination of the vat, a, b, liquid-motor d, connecting-tubes e, f, auxiliary supply-tube h, and carrying and guide rollers 'i, 719, Z, m, n; as and for the purposes herein shown and described.

2. In a machine for dyeing textile fabrics, the combination of a dye-vat, means for passing textile fabric in the width through the vat, a'liquid-motor outside the vat, connecting-pipes between the motor and vat whereby the dye solution is continuously circulated through the vat and a heating-pipe within the circulation-pipe, substantially as and for the purpose described.

3. In a machine for dyeing textile fabrics in the width, the combination of a dye-vat at having a trough-like bottom 1), with slots in the top of said trough, means for passing goods in the width through said slots and through the dye liquid in the trough, a liquidmotor outside the vat and circulation-pipes between. the motor and the trough whereby 

